i believe what you have is a chocolate chip star fish and as far a reef safe the site i checked says....no...
however i am no expert and could be way off so wait on an expert
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20 gallon nano 1 Bar Goby, 1 Black Clownfish, and 1 Pseudochromis
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72 gallon bowfront 2 Yellow Tailed Damsels, 2 Clownfish, 2 Green Cromies, 1 Hippo Tang, 1 Yellow Tang, 1 Six Line Wrasse, 1 Scissortail Goby, and 1 Coral Beauty |